Removing content consumers from mapping system

Nowadays, the global routing system suffers from great scalability problem. Core/edge separation solutions are proposed to solve the problem. However, they bring a global mapping system which might also suffer from scalability problem. We come up with an idea to reduce the necessary routing or mapping information, which is to separate content provider networks (containing content providers) from content consumer networks (containing only content consumers) and remove the routing or mapping information of content consumer networks. We combine this idea with core/edge separation solutions to reduce the necessary information in the global mapping system.